Ultimate space simulation software

Search found 842 matches

  • 1
  • 2
  • 3
  • 4
  • 5
  • 57
by midtskogen
15 May 2019 00:44
Forum: Science and Astronomy Discussions
Topic: Upcoming Astronomy & Science Events - and YOU
Replies: 8
Views: 982

Upcoming Astronomy & Science Events - and YOU

Perhaps.  It's fairly safe to assume that devastating impacts are very unlikely to happen over densely populated areas, but Chelyabinsk, while not particularly destructive, shows that there is a real risk.  Chelyabinsk doesn't show well how powerful such impacts can be, though.  A ten kilometer wide...
by midtskogen
12 May 2019 01:28
Forum: Off-topic Discussions
Topic: General global warming / climate change discussion
Replies: 203
Views: 29585

General global warming / climate change discussion

I read  an interesting article concerning sea level rise  today.  In Norwegian, sorry.  It's known that if the Greenland ice sheet completely melts, the global sea level will rise by about 7 meters.  But in reality it's a bit complex.  Perhaps counter intuitive, as the ice sheet melts, the sea level...
by midtskogen
08 May 2019 08:24
Forum: Off-topic Discussions
Topic: The Future of Humanity & Intelligent life in the universe
Replies: 389
Views: 67429

The Future of Humanity & Intelligent life in the universe

At first it sounds ridiculous that humans wouldn't necessarily be the first intelligent species on Earth, because humans have surely made enough to make an impact in the geological record visible for many million years.  But the modern human has been around for some 2-300,000 years, and they were in...
by midtskogen
02 May 2019 21:42
Forum: Off-topic Discussions
Topic: The Future of Humanity & Intelligent life in the universe
Replies: 389
Views: 67429

The Future of Humanity & Intelligent life in the universe

A-L-E-X wrote:
Qr Bbpost I've seen studies showing that we can curb the problem if we halve our CO2 output by 2030.  Think this is likely?

Nope.  There is a path which would take us in that direction, but that direction is taboo.
by midtskogen
30 Apr 2019 00:13
Forum: Off-topic Discussions
Topic: The Future of Humanity & Intelligent life in the universe
Replies: 389
Views: 67429

The Future of Humanity & Intelligent life in the universe

28615 Care to elaborate? How exactly would widespread atmospheric concentrations of +/- 800ppm carbon dioxide NOT be harmful for overall human health in the long-term? Because that's normal indoor concentration and we would have known if people died from it.  A lot of people are exposed to such con...
by midtskogen
29 Apr 2019 10:17
Forum: Off-topic Discussions
Topic: The Future of Humanity & Intelligent life in the universe
Replies: 389
Views: 67429

The Future of Humanity & Intelligent life in the universe

Stellarator wrote:

Seriously?  No, "huge swathes of the population" will not die from ~800 ppm CO2.  The rest of the video was not much better.  Oxford university - was this guy among the researchers?
by midtskogen
27 Apr 2019 00:50
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 639
Views: 76723

Science and Astronomy News

Stellarator wrote:
Qr Bbpost Should we be at all surprised that tabloids misinterpret

No, but even if they do, it can still be interesting to track down the source and read what it says.  One step closer to the source is this AP story.  And further digging led me to this article.
by midtskogen
26 Apr 2019 23:53
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 639
Views: 76723

Science and Astronomy News

28558 measure the value of the Hubble constant with better precision I read in the tabloid press today that scientists were "shocked" to discover that the universe is expanding faster than thought making the universe significantly younger than previously believed, younger than 13 billion ...
by midtskogen
22 Apr 2019 12:39
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 365
Views: 66087

Show off your work

Another nice day.
x.jpg
by midtskogen
19 Apr 2019 08:02
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 365
Views: 66087

Show off your work

Easter weather in Norway could hardly be better. We spent the first days of this week in Paris, which wasn't much warmer, really.

Oh, the incident in Paris Monday evening. It wasn't us.
by midtskogen
14 Apr 2019 11:20
Forum: Off-topic Discussions
Topic: Totally off-topic thread
Replies: 896
Views: 133504

Totally off-topic thread

Playing with a geiger-muller counter in an airplane. It was under 0.1 at the ground.
by midtskogen
14 Apr 2019 02:04
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 639
Views: 76723

Science and Astronomy News

Stellarator wrote:
Qr Bbpost this week has been a busy one!

Yes.  Also worthy mentions are the Falcon Heavy launch with recovery of all boosters, and the Israeli crash on the Moon.
by midtskogen
13 Apr 2019 23:27
Forum: Science and Astronomy Discussions
Topic: The first black hole photo
Replies: 29
Views: 1291

The first black hole photo

This is similar to how regular image compression works.  You apply some transform to the image (or in practice to blocks that the image is divided into).  Now that you have converted the image to the frequency domain, you do the actual compression by deliberately throwing away data by a step called ...
by midtskogen
13 Apr 2019 15:15
Forum: Science and Astronomy Discussions
Topic: The first black hole photo
Replies: 29
Views: 1291

The first black hole photo

Here's another video from a couple of years ago explaining the challenges of creating the photo: BIvezCVcsYs A big challenge is that the observations are incomplete, and algorithms have to fill in.  If no assumptions whatsoever are made, the observations are ambiguous.  We have a good idea what to e...
by midtskogen
13 Apr 2019 13:36
Forum: Science and Astronomy Discussions
Topic: 3 facts maybe you don't know about antimatter
Replies: 9
Views: 436

3 facts maybe you don't know about antimatter

My thoughts are that concepts taken from science fiction movies, whilst loosely based on scientific knowledge, do not offer solutions. If we're lucky we might have cost-effective fusion power plants by 2050.  Anti-matter rockets, if at all practical and possible in a safe way, hardly.
  • 1
  • 2
  • 3
  • 4
  • 5
  • 57